<!doctype html>
<html>
<head>
  <title>iframe Example</title>
  <script type="text/javascript">
    function doSomething() {
      alert("You clicked the button! This frame's title is " + document.title);
    }
  </script>
</head>
<body>
  <button id="goButton" onclick="doSomething()">Do something!</button>
</body>
</html>
